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  3. PEERLESS MJ-40

PEERLESS OF AMERICA MJ-40 Unit Cooler Evaporator Inc. 115V 1PH R12 R22 R500 R502

Mj-40 Peerless Of America Inc. Unit Cooler Evaporator 115v 1ph R12 R22 R500 R502

( Brand: Peerless Of America ), ( Manufacturer Part Number: MJ-40 ), ( Type: Evaporator ), ( Refrigerant: 12, 22, 500, 502 ), ( Color: Silver ), ( Voltage: 115 V ), ( Material: Metal ), ( Power Phase: 1 Phase )

Review PEERLESS OF AMERICA Inc. Unit Cooler Evaporator 115v 1ph R12 R22 R502

The **Peerless MJ-40 Unit Cooler Evaporator** is a robust, high-performance refrigeration component designed for industrial and commercial applications requiring precise temperature control and reliable cooling efficiency. Engineered with durability and versatility in mind, this evaporator is ideal for a wide range of systems, including process cooling, cold storage, and specialized refrigeration setups where consistent performance is critical. Operating on a **115V, single-phase (1PH)** electrical supply, the MJ-40 delivers dependable cooling while accommodating multiple refrigerants, including **R-12, R-22, R-500 (Isobutane), and R-502**, making it a flexible choice for both legacy and modern refrigeration systems. Its compact yet sturdy construction ensures seamless integration into existing HVAC or refrigeration frameworks, whether in food processing plants, laboratories, or industrial freezers.

The evaporator s design emphasizes efficiency and longevity, featuring a **copper tube and fin construction** that maximizes heat transfer while minimizing energy consumption. The robust shell-and-tube or plate-style configuration (depending on the specific model variant) ensures superior resistance to corrosion and thermal stress, even under demanding operating conditions. Its modular design allows for easy maintenance, with accessible components that simplify cleaning, refrigerant charging, and part replacement without requiring extensive downtime. The MJ-40 is particularly well-suited for applications where temperature stability is paramount, such as in pharmaceutical storage, beverage chilling, or industrial cooling loops where precise refrigerant management is essential.

For systems requiring adaptability, the Peerless MJ-40 excels with its compatibility across multiple refrigerants, catering to both older installations relying on **R-12 or R-22** and newer setups utilizing **R-500 (a blend of hydrocarbons) or R-502**, which offer lower environmental impact while maintaining high cooling performance. Its **115V single-phase operation** ensures compatibility with standard electrical infrastructure, reducing the need for specialized wiring or transformers. Whether deployed in a small-scale refrigeration unit or integrated into a larger industrial cooling system, the MJ-40 delivers consistent, reliable cooling with minimal operational overhead. Built to endure the rigors of continuous use, this evaporator is a testament to Peerless s commitment to engineering resilience and efficiency into every component, ensuring it remains a trusted workhorse in refrigeration and HVAC applications for years to come.

### **Pros and Cons of buying a Peerless MJ-40 Unit Cooler Evaporator (115V, 1PH, R12/R22/R500/R502)**

#### **Pros:**

1. **Versatility in Refrigerant Compatibility** The unit supports multiple refrigerants (R12, R22, R500, R502), making it adaptable for different applications, including older systems or specialty cooling needs. This flexibility can be useful for retrofitting or maintaining legacy equipment.

2. **Compact and Efficient Design** As a unit cooler, it is likely designed for space-constrained environments, such as commercial refrigeration, industrial processes, or small-scale cooling systems. Its efficiency may help reduce operational costs compared to larger or less optimized systems.

3. **Potential for Long-Term Use** If properly maintained, Peerless equipment is known for durability, especially in industrial settings. The MJ-40 may serve reliably for years if the refrigerants and components are well-suited to the application.

4. **Compatibility with Older Systems** Since it supports R12 and R22 (both phased-out in many regions but still in use in some industries), it can be a practical choice for maintaining or upgrading older refrigeration units where these refrigerants are still viable.

5. **Direct Replacement Option** If you re replacing a failing evaporator, this unit may serve as a direct drop-in replacement for compatible systems, reducing downtime and installation complexity.

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#### **Cons:**

1. **Outdated Refrigerants** R12 and R22 are being phased out in many countries due to their ozone-depleting properties. Using them may incur higher costs, regulatory restrictions, or difficulty in sourcing refrigerant in the future. R500 and R502 are also less common and may pose similar challenges.

2. **Energy Inefficiency Compared to Modern Alternatives** Newer refrigerants (e.g., R410A, R134a, or eco-friendly options like R454B) and advanced evaporator designs offer better energy efficiency and lower environmental impact. Operating this unit could result in higher energy consumption and costs over time.

3. **Limited Availability of Parts and Service** Peerless equipment, while durable, may have declining support as manufacturers shift focus to newer models. Finding replacement parts, technicians familiar with the unit, or compatible refrigerants could become increasingly difficult.

4. **Regulatory and Compliance Risks** In regions where R12 and R22 are banned or heavily restricted, using this unit could lead to legal or operational issues, including fines or forced retrofitting to compliant refrigerants.

5. **Potential for Higher Maintenance Costs** Older or less common units may require specialized knowledge to maintain, leading to higher labor costs or reliance on fewer service providers.

6. **Performance Limitations** The MJ-40 may not match the cooling capacity or efficiency of modern evaporators, especially in applications requiring high performance or large-scale cooling.

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### **Ending Conclusion:**

The Peerless MJ-40 unit cooler evaporator is a functional and versatile option for specific applications, particularly where compatibility with older refrigerants (R12/R22) or legacy systems is required. Its durability and compact design make it suitable for niche or industrial uses where direct replacement is needed. However, its reliance on phased-out refrigerants, potential energy inefficiency, and declining support from manufacturers pose significant drawbacks, especially in modern or environmentally conscious settings.

### **Recommendation:**

- **Buy if:** You have a specific need for R12/R22 compatibility, the unit is a direct replacement for existing equipment, and you can justify the long-term costs (refrigerant, maintenance, energy) against its benefits. Ensure you have a plan for refrigerant sourcing and compliance with local regulations.

- **Avoid if:** You are working in a region where R12/R22 are banned or restricted, or if energy efficiency and future-proofing are priorities. In such cases, consider upgrading to a newer evaporator using compliant refrigerants (e.g., R410A, R134a, or R454B) for better performance, lower costs, and regulatory compliance.

- **Alternative Consideration:** If the MJ-40 is no longer supported, explore modern Peerless models or other brands that offer similar cooling capacity with eco-friendly refrigerants. Consult a refrigeration specialist to assess whether retrofitting or upgrading is more cost-effective.

Details:

With a voltage of 115V and single fan motor, this evaporator is suitable for cooling systems utilizing refrigerants such as R12, R22, R5 R502. The Peerless of America MJ-40 Unit Cooler Evaporator is a high-quality HVAC component designed for commercial and industrial use. Made of durable metal in a sleek silver color, this model is reliable and efficient for maintaining optimal cooling temperatures various settings.

part #: mj40 price

  • $315.12

specifications refrigerhva:

  • brand: Peerless Of America
  • mpn: Mj-40
  • type: Evaporator
  • refrigerant: 12, 22, 500, 502
  • color: Silver
  • voltage: 115 V
  • material: Metal
  • power phase: 1 Phase

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  • HVAC Refrigeration > HVAC Refrigeration Components > Evaporators

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shipping refrigerhva:

  • transit: 6-13 Days
  • carrier: USPS
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  • cost: $39.10
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offer refrigerhva:

  • started: February 13, 2026
  • best offers: True
  • quantity: 1
  • options: Ship-to-home
  • sold: 0
  • availability: In Stock

seller refrigerhva:

  • # reviews: 7
  • rating: 100.0%
  • city: Kokomo, Indiana
type: evaporator, refrigerant: 12, 22, 500, 502, voltage: 115 v, power phase: 1 phase,
category: business & industrial > hvac refrigeration > hvac refrigeration components > evaporators, color: silver, material: metal, sku: 5142149935269673,
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